/* ===== CSS VARIABLES & COLOR SYSTEM ===== */
:root {
    /* Primary Colors */
    --primary: #1a1a1a;
    --primary-light: #2d2d2d;
    --primary-dark: #0d0d0d;
    
    /* Neutral Colors */
    --background: #fafafa;
    --surface: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --border: #e5e5e5;
    
    /* Accent Color */
    --accent: #d4af37;
    
    /* Semantic Colors */
    --success: #4ade80;
    --warning: #f59e0b;
    --error: #ef4444;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Border Radius */
    --radius: 8px;
    --radius-lg: 12px;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Monaco', 'Menlo', monospace;
}

/* ===== GLOBAL STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

button {
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    font-family: var(--font-family);
}

/* ===== HEADER & NAVIGATION ===== */
.header {
    background-color: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
}

.logo {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-2xl);
    flex: 1;
    justify-content: center;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--accent);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.search-box {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    width: 200px;
    background-color: var(--background);
}

.search-box:focus {
    outline: none;
    border-color: var(--primary);
    background-color: var(--surface);
}

.cart-btn {
    background-color: var(--primary);
    color: var(--surface);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
}

.cart-btn:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
}

.menu-toggle {
    display: none;
    background: none;
    font-size: 24px;
    color: var(--primary);
}

/* ===== HERO SECTION ===== */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--surface);
    padding: 120px var(--spacing-lg);
    text-align: center;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: var(--spacing-lg);
    font-weight: 700;
    line-height: 1.2;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: var(--spacing-2xl);
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    background-color: var(--accent);
    color: var(--primary);
    padding: var(--spacing-md) var(--spacing-2xl);
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.cta-button:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(212, 175, 55, 0.3);
}

/* ===== SECTION TITLES ===== */
.section-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title h2 {
    font-size: 40px;
    margin-bottom: var(--spacing-md);
    color: var(--primary);
    font-weight: 700;
}

.section-title p {
    font-size: 16px;
    color: var(--text-secondary);
}

/* ===== PROMOTIONS SECTION ===== */
.promotions {
    max-width: 1200px;
    margin: var(--spacing-2xl) auto;
    padding: 0 var(--spacing-lg);
}

.promotions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.promo-card {
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    color: var(--surface);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 250px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.promo-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.15);
}

.promo-card.new-arrival {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.promo-card.discount {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.promo-card.featured {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
}

.discount-badge {
    background-color: var(--accent);
    color: var(--primary);
}

.promo-card h3 {
    font-size: 24px;
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.promo-card p {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
}

.explore-btn {
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 14px;
    align-self: flex-start;
    transition: all 0.3s ease;
}

.explore-btn:hover {
    background-color: var(--surface);
    transform: translateX(4px);
}

/* ===== CATEGORIES & PRODUCTS ===== */
.categories {
    max-width: 1200px;
    margin: var(--spacing-2xl) auto;
    padding: 0 var(--spacing-lg);
}

.products-heading {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.products-heading h3 {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

.products-heading p {
    font-size: 14px;
    color: var(--text-secondary);
}

.category-filter {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background-color: transparent;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--primary);
    background-color: var(--primary);
    color: var(--surface);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.product-card {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.product-image {
    width: 100%;
    height: 280px;
    background-color: var(--background);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    overflow: hidden;
    position: relative;
}

.product-image::before {
    content: '👕';
    font-size: 80px;
}

.product-info {
    padding: var(--spacing-lg);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.product-category {
    font-size: 12px;
    color: var(--accent);
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.product-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.product-description {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.stars {
    color: var(--accent);
    font-size: 14px;
}

.rating-count {
    font-size: 12px;
    color: var(--text-secondary);
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-md);
}

.product-price {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
}

.product-price .old-price {
    text-decoration: line-through;
    color: var(--text-secondary);
    font-size: 14px;
    margin-right: var(--spacing-sm);
}

.view-btn {
    background-color: var(--primary);
    color: var(--surface);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.view-btn:hover {
    background-color: var(--primary-light);
}

/* ===== MODAL ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.modal.active {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: var(--spacing-xl);
}

.modal-content {
    background-color: var(--surface);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 900px;
    position: relative;
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    font-size: 32px;
    color: var(--text-secondary);
    z-index: 1;
}

.modal-close:hover {
    color: var(--primary);
}

.modal-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    padding: var(--spacing-2xl);
}

.modal-gallery {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.modal-image {
    width: 100%;
    height: 400px;
    background-color: var(--background);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 120px;
}

.modal-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-thumbs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.thumb-btn {
    border: 2px solid var(--border);
    background: var(--surface);
    border-radius: var(--radius);
    padding: 0;
    overflow: hidden;
    aspect-ratio: 1 / 1;
    transition: all 0.2s ease;
}

.thumb-btn img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.thumb-btn:hover {
    border-color: var(--primary);
    transform: translateY(-1px);
}

.thumb-btn.active {
    border-color: var(--accent);
    box-shadow: 0 6px 18px rgba(212, 175, 55, 0.18);
}

.modal-info h2 {
    font-size: 28px;
    margin-bottom: var(--spacing-md);
    color: var(--primary);
}

.price {
    font-size: 24px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: var(--spacing-lg);
}

.product-details {
    margin-bottom: var(--spacing-lg);
}

.product-details h3 {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.product-details p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.size-selector {
    margin: var(--spacing-lg) 0;
}

.size-selector label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--primary);
}

.size-options {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.size-btn {
    width: 45px;
    height: 45px;
    border: 2px solid var(--border);
    background-color: var(--surface);
    border-radius: var(--radius);
    font-weight: 600;
    color: var(--primary);
    transition: all 0.3s ease;
}

.size-btn:hover,
.size-btn.active {
    border-color: var(--primary);
    background-color: var(--primary);
    color: var(--surface);
}

.add-to-cart-btn {
    width: 100%;
    background-color: var(--accent);
    color: var(--primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 16px;
    margin-top: var(--spacing-lg);
    transition: all 0.3s ease;
}

.add-to-cart-btn:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 24px rgba(212, 175, 55, 0.3);
}

.reviews-section {
    padding: 0 var(--spacing-2xl) var(--spacing-2xl);
    border-top: 1px solid var(--border);
    max-height: 500px;
    overflow-y: auto;
}

.reviews-section h3 {
    font-size: 18px;
    margin: var(--spacing-lg) 0;
    color: var(--primary);
}

.reviews-list {
    margin-bottom: var(--spacing-xl);
}

.review-item {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.review-item:last-child {
    border-bottom: none;
}

.review-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.review-author {
    font-weight: 600;
    color: var(--primary);
}

.review-rating {
    color: var(--accent);
    font-size: 12px;
}

.review-text {
    color: var(--text-secondary);
    line-height: 1.6;
}

.add-review {
    margin-top: var(--spacing-xl);
}

.add-review h4 {
    font-size: 16px;
    margin-bottom: var(--spacing-md);
    color: var(--primary);
}

.rating-input {
    margin-bottom: var(--spacing-md);
}

.rating-input label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    font-size: 14px;
}

.star-input {
    display: flex;
    gap: var(--spacing-sm);
}

.star {
    font-size: 24px;
    color: var(--border);
    cursor: pointer;
    transition: color 0.3s ease;
}

.star:hover,
.star.active {
    color: var(--accent);
}

#reviewText {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: var(--font-family);
    font-size: 14px;
    resize: vertical;
    min-height: 100px;
    margin-bottom: var(--spacing-md);
}

#reviewText:focus {
    outline: none;
    border-color: var(--primary);
    background-color: var(--background);
}

.submit-review-btn {
    background-color: var(--primary);
    color: var(--surface);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
}

.submit-review-btn:hover {
    background-color: var(--primary-light);
}

/* ===== REVIEWS SHOWCASE ===== */
.reviews-showcase {
    background-color: var(--surface);
    padding: var(--spacing-2xl) var(--spacing-lg);
    max-width: 1200px;
    margin: var(--spacing-2xl) auto;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.review-card {
    background-color: var(--background);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.review-card:hover {
    border-color: var(--accent);
    box-shadow: 0 8px 24px rgba(212, 175, 55, 0.1);
}

.review-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--spacing-md);
}

.reviewer-name {
    font-weight: 700;
    color: var(--primary);
}

.review-date {
    font-size: 12px;
    color: var(--text-secondary);
}

.review-stars {
    color: var(--accent);
    font-size: 14px;
    margin-bottom: var(--spacing-sm);
}

.review-product {
    font-size: 13px;
    color: var(--accent);
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.review-comment {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 14px;
}

/* ===== NEWSLETTER ===== */
.newsletter {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--surface);
    padding: var(--spacing-2xl) var(--spacing-lg);
    text-align: center;
    max-width: 1200px;
    margin: var(--spacing-2xl) auto;
    border-radius: var(--radius-lg);
}

.newsletter-content h2 {
    font-size: 32px;
    margin-bottom: var(--spacing-md);
}

.newsletter-content p {
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-md);
    max-width: 450px;
    margin: 0 auto;
}

#emailInput {
    flex: 1;
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
}

.newsletter-btn {
    background-color: var(--accent);
    color: var(--primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius);
    font-weight: 700;
    transition: all 0.3s ease;
}

.newsletter-btn:hover {
    transform: scale(1.05);
}

/* ===== FOOTER ===== */
.footer {
    background-color: var(--primary);
    color: var(--surface);
    padding: var(--spacing-2xl) var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-grid {
    max-width: 1200px;
    margin: 0 auto var(--spacing-2xl);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.footer-section h4 {
    font-size: 16px;
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.footer-section p {
    font-size: 14px;
    opacity: 0.8;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    font-size: 14px;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-section a:hover {
    opacity: 1;
    color: var(--accent);
}

.social-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    font-size: 12px;
    opacity: 0.7;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .search-box {
        width: 150px;
    }

    .header-container {
        padding: var(--spacing-md);
        gap: var(--spacing-md);
    }

    .hero-content h1 {
        font-size: 32px;
    }

    .hero-content p {
        font-size: 16px;
    }

    .section-title h2 {
        font-size: 28px;
    }

    .promotions-grid {
        grid-template-columns: 1fr;
    }

    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }

    .modal-body {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        padding: var(--spacing-lg);
    }

    .modal-image {
        height: 300px;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .category-filter {
        gap: var(--spacing-sm);
    }

    .filter-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 20px;
    }

    .header-actions {
        gap: var(--spacing-sm);
    }

    .cart-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 12px;
    }

    .hero {
        padding: 60px var(--spacing-md);
        min-height: 300px;
    }

    .hero-content h1 {
        font-size: 24px;
        margin-bottom: var(--spacing-md);
    }

    .hero-content p {
        font-size: 14px;
        margin-bottom: var(--spacing-lg);
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .product-image {
        height: 200px;
    }

    .section-title h2 {
        font-size: 22px;
    }

    .promo-card {
        min-height: 200px;
        padding: var(--spacing-lg);
    }

    .modal-content {
        border-radius: 0;
        max-width: 100%;
    }

    .modal {
        padding: 0;
    }

    .modal-body {
        padding: var(--spacing-lg);
    }

    .modal-image {
        height: 250px;
    }

    .modal-info h2 {
        font-size: 20px;
    }
}